A “1st ISO Processing” charge on your bank or credit card statement is almost always an ATM-related fee. 1st ISO Processing is a Green Bay, Wisconsin company that routes ATM transactions behind the scenes, so its name can appear as the billing descriptor for a surcharge, a balance-inquiry fee, or a recurring processor fee tied to a business account.1Digital Transactions. 1st ISO Processing If you don’t recognize the charge, you can dispute it through your bank or card issuer under federal consumer protection rules.
Why This Name Shows Up on Your Statement
The name printed on an ATM isn’t always the name that lands on your statement. Processors like 1st ISO handle the routing and settlement of ATM transactions, and their descriptor can appear in place of the ATM location.21st ISO Processing. Sales Services ATM Processing There are three common reasons the charge shows up:
- An ATM surcharge for using a machine outside your bank’s network. Your own bank may add a separate foreign-ATM fee on top of it.
- A balance-inquiry fee. Some ATMs charge even when you only check a balance, and it runs through the same processing channels.
- A recurring platform, compliance, or service fee. If you own a business that uses 1st ISO’s ATM processing, monthly fees can appear as line items under the processor’s name.
ATM processors earn revenue through a mix of per-transaction markups, retained interchange, monthly platform fees, compliance charges, and sometimes a share of the surcharge paid at the machine.3ATM Trader. ATM Processing Fees That layered structure is why the statement name and the ATM name often don’t match.
What to Do if You Don’t Recognize the Charge
At least one consumer has reported unauthorized 1st ISO Processing charges on a credit card to the Better Business Bureau.4BBB. 1st ISO Processing The dispute route depends on whether the charge hit a debit card or a credit card.
Debit Card or Bank Account
Debit transactions are governed by the Electronic Fund Transfer Act and Regulation E. Report the unauthorized transfer to your bank within two business days of discovering it and your maximum liability is $50. Wait longer than two business days but report within 60 days of the statement, and the cap rises to $500. After 60 days, you can be on the hook for the full amount of any unauthorized transfers that happened after that window closed.5FDIC. What Should I Do if I Have Unauthorized Charges on My Debit Card
Call your bank as soon as you spot the charge. The bank cannot require a police report or insist that you contact the merchant before it investigates. It must investigate promptly, complete its review within the Regulation E time limits, and correct any error it finds within one business day of that determination.6Consumer Financial Protection Bureau. Electronic Fund Transfers FAQs
Credit Card
Credit card disputes fall under the Fair Credit Billing Act. Send a written dispute letter to your card issuer at the address it designates for “billing inquiries” (not the payment address) within 60 days of the date the statement containing the error was sent. Include your name, account number, a description of the charge, and any supporting documents. Certified mail with a return receipt gives you proof of delivery.7FTC. Using Credit Cards and Disputing Charges
The issuer must acknowledge your dispute in writing within 30 days and resolve it within 90 days or two billing cycles, whichever comes first.8OCC. Unauthorized Charge Steps While the investigation is pending, you can withhold payment on the disputed amount and related finance charges, and the issuer cannot report you as delinquent on it.7FTC. Using Credit Cards and Disputing Charges
If the Bank or Issuer Won’t Resolve It
Submit a complaint to the Consumer Financial Protection Bureau at consumerfinance.gov/complaint if your bank or card issuer fails to follow proper procedures.6Consumer Financial Protection Bureau. Electronic Fund Transfers FAQs Suspected identity theft can be reported at IdentityTheft.gov, and fraud at ReportFraud.ftc.gov.7FTC. Using Credit Cards and Disputing Charges
If You Were Never Shown the ATM Fee
Federal law requires ATM operators to disclose surcharges before you commit to the transaction. The fee must appear on the ATM screen or on a paper notice after you start the transaction but before you’re locked into finishing it. If that disclosure isn’t provided, the operator can’t impose the fee.9Consumer Financial Protection Bureau. Final Rule Amendment to Reg E re ATM Disclosures
Consumers who were charged without proper disclosure may have a private right of action under federal law, with potential recovery of actual damages, statutory damages, and attorney’s fees.9Consumer Financial Protection Bureau. Final Rule Amendment to Reg E re ATM Disclosures Your own bank must also disclose its foreign-ATM fee when you open the account and on the statement when the fee is assessed.
Contacting the Company Directly
1st ISO Processing is headquartered at 1741 Cofrin Drive in Green Bay, Wisconsin. You can reach the company at 800-233-3776 or through 1stiso.com.21st ISO Processing. Sales Services ATM Processing Calling the processor can help identify which ATM or merchant account generated the charge, but it does not replace the formal dispute process with your bank or card issuer, and starting a dispute directly with your financial institution is what preserves your rights under Regulation E and the Fair Credit Billing Act.